Summary
Ein Angreifer kann mehrere Schwachstellen in Langflow OSS ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, erweiterte Berechtigungen zu erlangen oder sensible Informationen offenzulegen.
Product
Langflow bietet eine visuelle Schnittstelle zum Erstellen von LLM-basierten Anwendungen.
Vulnerabilities 20
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Critical 9.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary OS commands due to improper neutralization of special elements used in an OS command.
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Critical 9.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.
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Critical 9.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an unauthenticated attacker to execute arbitrary code and access or modify chat sessions through publicly shared MCP project endpoints due to improper enforcement of public-flow security restrictions …
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High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 An attacker who could submit custom component source code could bypass the static security scanner by crafting an annotated class-body assignment that resolved to a dangerous callable through alias tracking; the resolved …
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High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow an authenticated attacker to execute arbitrary code due to an incomplete denylist in the security scanner.
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High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to an unguarded eval() call on attacker-controlled input.
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High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of command-line arguments in the MCP stdio server configuration.
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High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to an incomplete environment variable blocklist.
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High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary Python code due to improper authorization of custom components in stored flows.
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High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to improper neutralization of special characters in flow display names.
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High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 allows an authenticated non-administrative user could execute arbitrary operating system commands on the server at the privilege level of the application process by constructing a flow with an MCP Tools component configur…
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High 8.8
A path traversal vulnerability in file handling components could allow an authenticated attacker to write files to arbitrary locations on the server filesystem
IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary code due to improper limitation of a pathname to a restricted directory.
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High 8.6
Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to obtain sensitive information from internal network resources due to improper validation of user-supplied URLs.
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High 8.1
Langflow is vulnerable to authentication bypass and insufficient session expiration
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive information due to insufficient session expiration of API keys after user deactivation.
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High 7.5
Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
IBM Langflow OSS 1.0.0 through 1.11.5.
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Medium 6.5
Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
IBM Langflow OSS 1.0.0 through 1.11.5 is vulnerable to server-side request forgery (SSRF). This may allow an unauthenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
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Medium 6.5
Langflow is vulnerable to unauthorized file system access due to path traversal and missing storage path validation
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to read arbitrary files due to improper access control.
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Medium 6.5
Langflow is vulnerable to unauthorized file system access due to path traversal and missing storage path validation
IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an authenticated attacker to access sensitive files belonging to other users due to improper access control in the File/Read File component. When executing flows through the /api/v1/run/advanced/{flow…
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Medium 5.0
Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to obtain sensitive information due to improper validation of user-controlled API endpoints.
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Medium 4.2
Langflow is vulnerable to authentication bypass and insufficient session expiration
IBM Langflow OSS 1.0.0 through 1.11.5 could allow an authenticated attacker to access another user's MCP server context due to improper cache key isolation in the MCP Tools component.
Revision history
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#3
Referenz(en) aufgenommen: EUVD-2026-78087, EUVD-2026-78083
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#2
Referenz(en) aufgenommen: EUVD-2026-75793, EUVD-2026-75792, EUVD-2026-75784, EUVD-2026-75781, EUVD-2026-75780, EUVD-2026-75779, EUVD-2026-75778, EUVD-2026-75777, EUVD-2026-75771, EUVD-2026-75761, EUVD-2026-75748, EUVD-2026-75723, EUVD-2026-75800, EUVD-2026-75799, EUVD-2026-75796, EUVD-2026-75795, EUVD-2026-75794, EUVD-2026-75801
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#1
Initiale Fassung
References
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IBM Security Bulletin 7286656 vom 2026-09-08
https://www.ibm.com/support/pages/node/7286656
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IBM Security Bulletin 7286657 vom 2026-09-08
https://www.ibm.com/support/pages/node/7286657
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IBM Security Bulletin 7286662 vom 2026-09-08
https://www.ibm.com/support/pages/node/7286662
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IBM Security Bulletin 7286665 vom 2026-09-08
https://www.ibm.com/support/pages/node/7286665
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IBM Security Bulletin 7286666 vom 2026-09-08
https://www.ibm.com/support/pages/node/7286666